Detached unit of Montezuma Castle National Monument: a limestone sinkhole ~370–386 ft across continuously fed by ~1.5 million gallons of spring water per day. High dissolved CO₂ excludes fish but supports several endemic aquatic species; Sinagua cliff dwellings, pithouses, and a prehistoric irrigation canal ring the rim. Free to enter — a compact geology + cultural oasis in the Verde Valley.
Field facts
| Region | Yavapai County, AZ |
|---|---|
| Coordinates | 34.6492, -111.7522 |
| Type | Limestone sinkhole / spring |
| Diameter | ~370–386 ft rim-to-rim |
| Flow | ~1.5M gal/day spring discharge |
| Fee | Free (NPS unit) |
Nearby locations
Nearby amenities
- Rec areaMontezuma Castle National Monument6.5 km away
- CampgroundClear Creek Campground (AZ)14.9 km away
Public recreation data — BLM & Recreation.gov (RIDB). Verify current access, fees, and seasonal closures before traveling.
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